#039;s Echo speakers aren't exactly audiophile quality, but adding this inexpensive subwoofer certainly improves their performance.
Where should I place the Echo Sub in my room?
Echo Sub: Good Hardware Meets Limited Software
Echo Sub: Good Hardware Meets Limited Software
Is the Echo good for a home as well as a Bluetooth speaker? - Quora
Echo Sub review: Exactly what you need for Alexa-powered music
Echo Studio Review: Gorgeous Bass Meets 3D Sound
Echo Sub Review
Echo Sub - Powerful subwoofer for your Echo - requires compatible Echo device : Devices & Accessories
leak reveals upcoming Echo subwoofer and smart plug - The Verge
Echo Link vs Echo Link Amp review: which Alexa add-on is best?
just accidentally leaked details about two new Echo devices ahead of an event today
Official: Echo Studio with Echo Sub
Echo Studio review: Better than ever, but is that enough?
Echo Studio Review: 3D High-Quality Sound with Smart Home Technology
Official: Echo Studio with Echo Sub